Index: src/wp-includes/comment.php
===================================================================
--- src/wp-includes/comment.php	(revision 36140)
+++ src/wp-includes/comment.php	(working copy)
@@ -1939,7 +1939,7 @@
 
 	$comment_ID = $data['comment_ID'];
 	$comment_post_ID = $data['comment_post_ID'];
-	$keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id' );
+	$keys = array( 'comment_post_ID', 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_type', 'comment_parent', 'user_id', 'comment_agent', 'comment_author_IP' );
 	$data = wp_array_slice_assoc( $data, $keys );
 	$rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );